CN111411706A - Truss combined steel-concrete structure building system - Google Patents

Truss combined steel-concrete structure building system Download PDF

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Publication number
CN111411706A
CN111411706A CN202010344317.2A CN202010344317A CN111411706A CN 111411706 A CN111411706 A CN 111411706A CN 202010344317 A CN202010344317 A CN 202010344317A CN 111411706 A CN111411706 A CN 111411706A
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China
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truss
combined
chord member
unit
concrete
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CN202010344317.2A
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Chinese (zh)
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苏道远
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/562—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with fillings between the load-bearing elongated members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
    • E04B2/62—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members the members being formed of two or more elements in side-by-side relationship
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2466—Details of the elongated load-supporting parts
    • E04B2001/2472—Elongated load-supporting part formed from a number of parallel profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2466—Details of the elongated load-supporting parts
    • E04B2001/2478—Profile filled with concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2481—Details of wall panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2484—Details of floor panels or slabs

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention relates to the field of fabricated buildings, and discloses a truss combined steel-concrete structure building system which comprises a truss combined structure, a wallboard and a floor slab, wherein the truss combined structure comprises a combined column and a synthetic beam, the truss combined structure consists of a plurality of unit three-dimensional trusses and unit plane trusses, the unit three-dimensional trusses are formed by enclosing four unit plane trusses, and four corners of the unit three-dimensional trusses are combined columns formed by fixedly connecting vertical members; the combined columns of the upper floor and the lower floor are correspondingly connected through a connecting piece I to form a vertically through combined column, and the horizontal members of the upper floor and the lower floor are connected through a connecting piece II to form a combined beam. The invention gives full play to the performance advantages and characteristics of steel and concrete, optimizes the structural combination, divides and designs the structural beam and the structural column by the technical innovation idea of 'breaking first, standing later and combining later', and forms a more reasonable main structure after installation and combination, thereby effectively transmitting force, improving the stress performance of the structure and having better shock resistance.

Description

Truss combined steel-concrete structure building system
Technical Field
The invention relates to the field of fabricated buildings, in particular to a truss combined steel-concrete structure building system.
Background
The building structure mainly comprises two structural forms of a steel structure and a reinforced concrete structure, and the two structures respectively have long points and short plates.
The steel construction has the advantage that dead weight is light, bearing capacity is big, the structural feature is good and easy processing, can directly use in the assembled steel structure building, but the steel construction is easy to be corroded, fire resistance is poor, needs independent process to solve rust-resistant and fire prevention problem, because the girder steel post of steel construction is the structural component who link up in succession, the sound of floor about easy transmission, and it is difficult to hinder sound, influences and uses comfortable effect.
In a reinforced concrete structure, the concrete has strong integral rigidity and good workability, the on-site pouring is easy to construct, and the fireproof performance is excellent, but the on-site pouring of the concrete needs a large amount of templates, supporting supports and scaffolds, and the concrete has great weight, so that the load of a bearing structure is increased, and the structural design is not facilitated.
As shown in fig. 1, in the current implementation application, the general design construction installation method is to split the beam and the column in the reinforced concrete frame structure, break the stressed steel bars, process them into prefabricated components in the factory, then transport them to the construction site for installation, connect the reserved steel bars at the joints of the prefabricated components together by metal sleeves, inject cement-based slurry into the metal sleeves, and pour concrete again at the joints of the prefabricated components to connect the prefabricated components together, so as to form an assembled reinforced concrete structure (PC structure for short), thereby achieving the purpose of assembling the building.
The method generates a large number of connecting nodes for beams and columns of the load-bearing structural member, the rigidity of the nodes is reduced because the nodes at the connecting positions of the prefabricated members are formed by secondary pouring of concrete, and the section size of the prefabricated members needs to be increased in design so as to make up the adverse effect of uncertain factors generated at the connecting positions on the structural body. The simple overlapped assembly design construction installation method does not give full play to the performance advantages of good integrity, high strength and easy forming of the concrete, and simultaneously, the method is simply prefabricated in factories, consumes a large amount of energy required by steam curing, not only increases the price of the concrete per se in multiples, but also increases the secondary transportation and cost from factories to construction sites; a large number of metal sleeve connecting components are used, so that the construction cost is increased, the working hours for connecting and grouting the metal sleeves are increased, and the construction and installation efficiency is reduced; meanwhile, the grouting inside the metal sleeve is closed hidden construction, air inside the sleeve is difficult to discharge completely, cavities are easy to generate and are not compact, the compactness and quality monitoring of grouting cannot be detected, and uncertain potential safety hazards are brought to the reliability of stressed steel bar connection.
Disclosure of Invention
The invention mainly aims to provide a truss combined steel-concrete structure building system aiming at the defects.
In order to achieve the purpose, the truss combined steel-concrete structure building system comprises a truss combined structure, a wallboard and a floor slab, wherein the truss combined structure comprises a combined column and a synthetic beam, and concrete is poured in the combined column and the synthetic beam;
the truss combined structure consists of a plurality of unit three-dimensional trusses and unit plane trusses;
the unit plane truss comprises an upper chord member, a lower chord member and at least two vertical members; two ends of the vertical component are respectively and fixedly connected with the bottom surface of the upper chord component and the top surface of the lower chord component, and through holes communicated with the vertical component are formed in the bottom surface of the upper chord component and the top surface of the lower chord component; the unit three-dimensional truss is formed by enclosing four unit plane trusses, an upper chord member and a lower chord member of each unit plane truss are respectively and correspondingly fixedly connected, and four corners of each unit three-dimensional truss are combined columns formed by fixedly connecting vertical members;
the truss combined structure in the same floor is composed of a plurality of unit plane trusses, the upper chord members and the lower chord members of the unit plane trusses are respectively and correspondingly fixedly connected, and the vertical members are fixedly connected to form a combined column; or the truss combined structure in the same floor consists of unit three-dimensional trusses and unit plane trusses, the adjacent unit three-dimensional trusses are connected through two unit plane trusses, the upper chord member and the lower chord member of the unit plane truss are respectively and fixedly connected with the upper chord member and the lower chord member of the unit three-dimensional trusses on the two sides, and the vertical member of the unit plane truss is fixedly connected with the vertical members of the unit three-dimensional trusses on the two sides to form a combined column; the combined columns of the upper floor and the lower floor are correspondingly connected through the connecting piece I to form a vertically-through combined column, and the lower chord member and the upper chord member of the upper floor and the lower floor are connected through the connecting piece II to form a combined beam.
Preferably, the upper chord member and the lower chord member are T-shaped, L-shaped or U-shaped section steels, and the upper chord member and the lower chord member in the same unit plane truss are symmetrically arranged.
Preferably, a plurality of vertical members are further arranged between the two vertical members of the unit plane truss, a hole cross beam is further arranged between the two adjacent vertical members, and a door and window hole is formed between the hole cross beam and the vertical members.
Preferably, the connecting piece II is a positioning bolt, the positioning bolt is of a symmetrical structure, external threads are arranged at two ends of the positioning bolt, a nut is mounted on the external threads, and a blocking piece is fixed at the innermost end of the external thread part.
Preferably, the composite beam is also provided with stressed steel bars, stirrups or constructional steel bars.
Preferably, the vertical members are square steel pipes, rectangular steel pipes or H-shaped steel, the combined column is T-shaped, L-shaped or cross-shaped, and the vertical members forming the combined column are connected or bolted through welding.
Preferably, the upper chord member, the lower chord member and the vertical member are provided with a plurality of punched holes, and the punched holes are used as bolt holes of positioning bolts or threading pipe holes of strong and weak current.
Preferably, the surfaces of the combined column and the synthetic beam are coated with an integrated dismantling-free template, concrete is poured inside the integrated dismantling-free template, and the integrated dismantling-free template is a cement-based pressure plate, a prefabricated concrete sheet, an autoclaved aerated concrete sheet or a ceramsite concrete sheet.
Preferably, the wall panels are prefabricated wall panels fixed to both sides of the truss structure.
Preferably, the floor slab comprises a precast layer and a cast-in-place layer, and the cast-in-place layer is cast together with the concrete in the composite beam.
The invention has the following beneficial effects:
(1) the invention gives full play to the performance advantages and characteristics of steel and concrete, optimizes the structural combination, divides and designs the structural beam and the structural column by the technical innovation idea of 'breaking first, standing later and combining later', and forms a more reasonable main structure after installation and combination, thereby effectively transmitting force, improving the stress performance of the structure and having better shock resistance.
(2) According to the invention, all the connecting nodes and the connecting pieces are poured into the concrete and effectively combined with the concrete to form a seamless connection-node-free truss combined steel-concrete structural building technical system, so that construction hidden dangers are eliminated, and the construction quality is guaranteed;
(3) the truss combined structure forms a stable structure, does not need support and scaffolds in construction, creates a plurality of convenient conditions such as construction planes, construction spaces and the like for high-altitude construction and installation of other procedures, is safe and reliable in construction, is synchronously constructed with the installation of the inner wall plate and the outer wall plate, does not influence each other when being crossed with other procedures, and is high in installation speed and short in construction period;
(4) according to the truss combined steel-concrete structure building system, multiple processes are integrated in the construction of plastering-free inner and outer wall surfaces, fireproof integration of a steel structure, decoration and heat preservation integration of an outer wall and the like, so that a large amount of building materials and equipment are saved, the stacking field of a construction site is saved, a large amount of supporting supports and scaffolds are reduced, the labor consumption and labor cost are obviously reduced, the construction cost is comprehensively reduced, and the investment of capital is saved;
(5) the invention has the advantages that the relatively closed cavity is arranged between the inner wall body and the outer wall body, the sound transmission frequency of steel is changed by the concrete poured in the combination columns and the synthesis beams, the sound transmission of the upper floor and the lower floor is blocked, the combination columns and the synthesis beams are hidden in the wall body and do not protrude out of the wall surface, the combination columns and the synthesis beams have the characteristics of heat preservation, heat insulation, cold protection, fire prevention, energy conservation, sound insulation and sound resistance on the whole building, and the use performance and the use comfort degree of the building are improved.
Drawings
FIG. 1 is a schematic view showing the connection of a reinforced concrete frame structure in the prior art;
FIG. 2 is a schematic view of a unitary planar truss structure;
FIG. 3 is one of the schematic structural views of the upper chord member;
FIG. 4 is a second schematic structural view of the upper chord member;
FIG. 5 is a third schematic view of the upper chord member;
FIG. 6 is a schematic view of a unit space truss structure
FIG. 7 is one of the schematic structural views of the integrated column;
FIG. 8 is a second schematic view of the structure of the assembled column;
FIG. 9 is a third schematic view of the structure of the assembled column;
FIG. 10 is a schematic view of the truss-combined steel-concrete structural building system of the present invention;
FIG. 11 is one of the structural schematic diagrams of a connecting piece I;
FIG. 12 is one of the schematic structural diagrams of the connecting piece I connecting the vertical members;
FIG. 13 is a second schematic view of the structure of the connecting member I;
FIG. 14 is an exploded view of the structure of FIG. 13;
FIG. 15 is a second schematic view of the structure of the connecting member I connecting the vertical members;
FIG. 16 is a third schematic view of the structure of the connecting member I;
FIG. 17 is a third schematic view of the structure of the connecting piece I connecting the vertical members;
FIG. 18 is a schematic structural view of a connecting piece II;
wherein the figures include the following reference numerals: 1. a unit plane truss; 11. an upper chord member; 12. a lower chord member; 13. a vertical member; 14. an opening cross beam; 15. a through hole; 2. a unit three-dimensional truss; 3. a connecting piece I; 31. a connecting plate I; 32. a connecting plate II; 33. a connecting plate III; 34. a connecting plate IV; 35. a semicircular groove; 36. a rectangular clamping groove; 37. a base plate; 38. a side plate I; 39. a side plate II; 40. a neutral plate; 4. a connecting piece II; 41. a baffle plate.
Detailed Description
The invention will be further explained with reference to the drawings.
The truss combined steel-concrete structure building system comprises a truss combined structure, a wallboard and a floor slab, wherein the truss combined structure comprises a combined column and a synthetic beam, and concrete is poured in the combined column and the synthetic beam;
the truss combined structure consists of a plurality of unit plane trusses 1 and unit three-dimensional trusses 2;
as shown in fig. 2, the unit plane truss 1 includes an upper chord member 11, a lower chord member 12 and a plurality of vertical members 13, the upper chord member and the lower chord member in the same unit plane truss are symmetrically arranged, two ends of each vertical member are respectively fixedly connected with the bottom surface of the upper chord member and the top surface of the lower chord member, each vertical member is a square steel pipe, a rectangular steel pipe or an H-shaped steel, the upper chord member and the lower chord member are T-shaped, L-shaped or U-shaped steel, and through holes 15 penetrating through the vertical members are arranged on the bottom surface of the upper chord member and the top surface of the lower chord member, as shown in fig. 3-5.
According to actual conditions, an opening cross beam 14 can be additionally arranged between every two adjacent vertical members, a door and window opening is formed between the opening cross beam and the vertical members, and a door and a window can be installed as required.
As shown in figure 6, the unit three-dimensional truss 2 is formed by enclosing four unit plane trusses 1, an upper chord member 11 and a lower chord member 12 of each unit plane truss are respectively and correspondingly fixedly connected, four corners of each unit three-dimensional truss are combined columns formed by fixedly connecting vertical members, as shown in figures 7-9, the combined columns are T-shaped, L-shaped or cross-shaped, and the vertical members forming the combined columns are connected or bolted through welding.
As shown in fig. 10, there are various ways of forming the truss composite structure in the same floor, the first type is composed of a plurality of unit plane trusses, the upper chord member and the lower chord member of the unit plane trusses are respectively and correspondingly fixedly connected, and the vertical members are fixedly connected to form a composite column, so as to form a plurality of structural spaces; the method is suitable for any combination of a plurality of rooms; the second type is composed of unit three-dimensional trusses and unit plane trusses, adjacent unit three-dimensional trusses are connected through two unit plane trusses to form the unit three-dimensional trusses, an upper chord member and a lower chord member of each unit plane truss are fixedly connected with an upper chord member and a lower chord member of each unit three-dimensional truss on two sides respectively, and a vertical member of each unit plane truss is fixedly connected with a vertical member of each unit three-dimensional truss on two sides to form a combined column; the mode is suitable for the condition that more than three odd-numbered rooms are adjacent side by side, two unit three-dimensional trusses can be well installed in a factory, and the two unit three-dimensional trusses are connected through two unit plane trusses on the spot. In any of the above-described methods, the purpose is to form a three-dimensional structure space by enclosing the unit plane trusses in each room divided by the design.
The combined columns of the upper floor and the lower floor are correspondingly connected through a connecting piece I3 to form a vertically-through combined column, and the lower chord member and the upper chord member of the upper floor and the lower floor are connected through a connecting piece II 4 to form a composite beam.
The structure of the connecting piece I3 is different for the upper chord member and the lower chord member with different structures.
As shown in fig. 11-12, the upper chord member and the lower chord member are both T-shaped structures, and the wing plates on both sides are provided with through holes 15 communicated with the vertical members; connecting piece I includes connecting plate I31 and connecting plate II 32, and II vertical fixation of connecting plate locate at the center of connecting plate I, and connecting plate I that is located II tops of connecting plate and below is provided with the web male recess 33 that supplies T type connecting piece I, and the top and the bottom of connecting plate I all are provided with the arc digging groove 34 corresponding with the through-hole, and the diameter in arc digging groove is the same with the diameter of through-hole. The upper chord horizontal member of the lower layer truss structure and the lower chord horizontal member of the upper layer truss structure are respectively inserted into the groove of the connecting plate I, and two ends of the connecting plate II are respectively fixedly connected with the upper chord horizontal member of the lower layer truss structure and the lower chord horizontal web of the upper layer truss structure.
As shown in fig. 13-15, the upper chord member and the lower chord member are both U-shaped structures, the middle web plate is provided with a through hole 15 communicated with the vertical member, the connecting piece i is composed of two same claw-shaped connecting pieces, each claw-shaped connecting piece comprises a connecting plate iii 33 and a connecting plate iv 34, one end of the connecting plate iii 33 is dug with a semicircular groove 35, one end is provided with a rectangular clamping groove 36, the connecting plate iv 34 is shorter than the connecting plate iii 33, one end is also provided with a semicircular groove, the other end is vertically embedded into the semicircle of the connecting plate iii 33, the semicircular grooves of the connecting plate III 33 and the connecting plate IV 34 form a claw-shaped structure, two identical claw-shaped connecting pieces are vertically clamped through clamping grooves, the connecting plate III 33 and the connecting plate IV 34 are mutually propped against each other, the connecting piece I is formed, the claw-shaped structures at the two ends are respectively covered on the through holes of the web plate, and the combined columns on the upper floor and the lower floor can be connected to form a vertically-through combined column.
As shown in FIGS. 16-17, the upper chord member and the lower chord member are both L-shaped structures, the web plate is provided with a through hole 15 communicated with the vertical member, the connecting piece I comprises two same connecting blocks, each connecting block comprises a bottom plate 37, a side plate I38, a side plate II 39 and a middle plate 40, the side plates I and the side plates II are respectively and vertically fixed on two sides of the bottom plate, the height of the side plate I is lower than that of the side plates II, one end of the middle plate is vertically fixed in the middle of the bottom plate, the other end of the middle plate is a semicircular groove, the bottom plates on two sides of the middle plate are respectively provided with two through holes, the two connecting blocks of the connecting piece I are arranged in a central symmetry mode, the side plates I are arranged on the side plates of the L-shaped upper chord member or lower chord member, the side plates II are arranged on the web plate of the L-shaped upper chord member or lower chord.
As shown in fig. 18, the connecting member ii 4 is a positioning bolt, the positioning bolt is of a symmetrical structure, external threads are arranged at two ends of the positioning bolt, a nut is mounted on the external threads, and a blocking piece 41 is fixed at the innermost end of the external thread portion. The distance between the two baffle plates is the inner size of the upper flange and the lower flange of the composite beam, so that the upper chord member and the lower chord member are prevented from moving towards the middle.
When the structure is calculated, the upper and lower chord members of the composite beam can be converted to replace stressed steel bars. According to the needs of structural design, the composite beam can be provided with stressed steel bars, stirrups or constructional steel bars, the floor slab comprises a prefabricated layer and a cast-in-place layer, the composite beam and the cast-in-place layer of the floor slab are poured together, all the steel bars, connecting pieces and connecting nodes (including welding points of upper and lower chord members and vertical members, connecting points of the composite beam, connecting nodes of upper and lower combination columns and the like) are wrapped in the composite beam by poured concrete, and the structural beam without seams and connecting nodes is formed and is integrated with a floor slab, so that the reliability of node connection is guaranteed, the rigidity of the node is increased, and the stress performance of the node is improved.
The upper chord member, the lower chord member and the vertical member are provided with a plurality of punched holes which are used as bolt holes of positioning bolts or threading pipe holes of strong and weak electricity.
The surfaces of the combined column and the synthetic beam are coated with an integrated dismantling-free template, concrete is poured inside the integrated dismantling-free template, and the integrated dismantling-free template is a cement-based pressure plate, a prefabricated concrete sheet, an autoclaved aerated concrete sheet or a ceramsite concrete sheet.
The wallboard is prefabricated wallboard, be fixed in truss structure both sides, it is the double-page cavity wall body of wallboard to form the centre is cavity both sides, the cavity that forms is airtight relatively, the air bed that does not flow, form the air medium bridge cut-off layer that does not have the material cost, have the characteristics of sound insulation, thermal-insulated, keep warm, winter protection, fire prevention and anti-condensation, can also arrange the pipeline of installation strong and weak electricity in the cavity, the side of outer wall board can set up the heat preservation, constitute the interior heat preservation of outer wall, the heat preservation surface course does not need to smear cement mortar protective layer, have the heat preservation, do not ftracture, do not have the rainwater infiltration, do. The surfaces of the inner and outer wall boards have good flatness and smoothness, and a cement mortar layer is not required to be smeared. The wall boards arranged on the two sides of the truss structure play a skin effect, the skin effect increases the plane rigidity of the plane truss, the unit plane truss is used as a framework to form a unit box structure with good stability, the upper, lower, left and right unit box structures jointly form a continuous main structure which is tightly combined together, the performance of the main structure is optimized, and the wall board has better bearing capacity and shock resistance.
The production processing method and the installation combination method of the truss combined steel-concrete structure building system are as follows;
the production and processing method comprises the following steps:
1. cutting and blanking the upper chord member, the lower chord member and the vertical member in a production workshop according to the designed processing diagram;
2. producing and processing connecting pieces (a connecting piece I and a connecting piece II);
3. punching, chamfering and welding the connectors (connectors) on the upper chord member, the lower chord member and the vertical member
Ⅰ)；
4. Manufacturing a tool for assembling the unit plane truss, assembling an upper chord member, a lower chord member and a vertical member on the tool, and welding to complete the production and processing of the unit plane truss;
5. checking the material component model and welding quality of the unit plane truss, checking the machining size and meeting the requirements of design drawings;
6. carrying out digital information coding on the unit plane truss, and inputting the floor, the shaft position number, the production date, the delivery date and the quality standard of the unit plane truss;
7. and packaging, leaving the factory and transporting to a construction site according to the unit plane truss combined installation unit.
The installation and combination method comprises the following steps:
the method comprises the following steps: placing the processed unit plane truss on a flat field, and placing a skid on the side contacting with the ground for making the unit plane truss not directly contact with the ground;
step two: and (4) cleaning embedded parts on foundation beams, foundation columns and foundation walls on a construction site, measuring elevation, positioning, correcting, paying off, checking and confirming without errors.
Step three: and hoisting in place according to the digital information coding sequence on the unit plane truss, and combining, installing, fixing and connecting to form a continuous unit three-dimensional truss, thereby finally forming a floor truss combined structure. And the four unit plane trusses are enclosed, fixedly connected and form a unit three-dimensional truss and then are hoisted to an appointed position, and the two unit three-dimensional trusses are fixedly connected through the unit plane trusses to form a continuous unit three-dimensional truss, so that the floor truss combined structure is finally formed. In the installation process, the lower chord member of the unit plane truss and the embedded part on the foundation are effectively and fixedly connected according to the design requirements, and then concrete is poured.
Step four: and hoisting the prefabricated composite floor slab to a mounting position, placing the prefabricated composite floor slab on supporting plates on two sides of the composite beam, mounting a temporary supporting support of the floor slab at the bottom of the floor slab, and connecting reserved steel bars between the end parts of the composite floor slab and the reinforcing bars required by design.
Step five: and (5) installing the unit three-dimensional truss and the unit plane truss on the upper layer until the floor truss combined structure is completed. And connecting the lower chord member with the upper chord member of the lower layer to form a composite beam.
Step six: and installing and binding the reinforcing bars required by the design in the composite beam and on the composite floor slab, installing a bottom template at the joint of the composite floor slab and a bottom die and a side die of the composite beam, and placing the embedded parts and the embedded pipelines.
Step seven: and pouring concrete in the floor cast-in-place layer and the synthetic beam, and curing until the strength of the concrete reaches the standard of construction requirements.
Step eight: and installing the lower inner wallboard and the lower outer wallboard.
Step nine: and repeating the installation sequence from the fourth step to the eighth step until the installation of the whole floor is finished.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A truss combined steel-concrete structure building system comprises a truss combined structure, a wallboard and a floor slab, wherein the truss combined structure comprises a combined column and a synthetic beam, concrete is poured in the combined column and the synthetic beam, and the truss combined steel-concrete structure building system is characterized in that,
the truss combined structure consists of a plurality of unit plane trusses (1) and unit three-dimensional trusses (2);
the unit plane truss (1) comprises an upper chord member (11), a lower chord member (12) and at least two vertical members (13); two ends of the vertical component (13) are respectively and fixedly connected with the bottom surface of the upper chord component (11) and the top surface of the lower chord component (12), and through holes (15) which are communicated with the vertical component (13) are respectively arranged on the bottom surface of the upper chord component (11) and the top surface of the lower chord component (12); the unit three-dimensional truss (2) is formed by enclosing four unit plane trusses (1), an upper chord member (11) and a lower chord member (12) of each unit plane truss (1) are respectively and correspondingly fixedly connected, and four corners of each unit three-dimensional truss (2) are combined columns formed by fixedly connecting vertical members (13);
the truss combined structure in the same floor is composed of a plurality of unit plane trusses (1), an upper chord member (11) and a lower chord member (12) of each unit plane truss (1) are respectively and correspondingly fixedly connected, and vertical members (13) are mutually and correspondingly fixedly connected to form a combined column; or the truss combined structure in the same floor is composed of unit three-dimensional trusses (2) and unit plane trusses (1), the adjacent unit three-dimensional trusses (2) are connected through the two unit plane trusses (1), the upper chord member (11) and the lower chord member (12) of the unit plane truss (1) are respectively and fixedly connected with the upper chord member (11) and the lower chord member (12) of the unit three-dimensional trusses (2) on the two sides, and the vertical member (13) of the unit plane truss (1) is fixedly connected with the vertical members (13) of the unit three-dimensional trusses (2) on the two sides to form a combined column; the combined columns of the upper and lower floors are correspondingly connected through a connecting piece I (3) to form a vertically-through combined column, and an upper chord member (11) and a lower chord member (12) of the truss combined structure of the upper and lower floors are connected through a connecting piece II (4) to form a combined beam.
2. The truss-combined steel-concrete structural building system according to claim 1, wherein the upper chord member (11) and the lower chord member (12) are T-shaped, L-shaped or U-shaped steel sections, and the upper chord member (11) and the lower chord member (12) in the same unit plane truss (1) are symmetrically arranged.
3. The truss-combined steel-concrete structure building system according to claim 1, wherein a plurality of vertical members (13) are further arranged between two vertical members (13) of the unit plane truss (1), a hole cross beam (14) is further arranged between two adjacent vertical members (13), and a door and window hole is formed between the hole cross beam (14) and the vertical members (13).
4. The truss combined steel-concrete structure building system as claimed in claim 1, wherein the connecting piece II (4) is a positioning bolt, the positioning bolt is of a symmetrical structure, external threads are arranged at two ends of the positioning bolt, a nut is arranged on the external threads, and a blocking piece (41) is fixed at the innermost end of the external thread part.
5. The truss-combined steel-concrete structural building system according to claim 1, wherein the synthetic beams are further provided with stressed steel bars, stirrups or constructional steel bars.
6. The truss-combined steel-concrete structural building system according to claim 1, wherein the vertical members (13) are square steel pipes, rectangular steel pipes or H-shaped steel, the formed combined columns are T-shaped, L-shaped or cross-shaped, and the vertical members (13) constituting the combined columns are connected by welding or bolted.
7. The truss-combined steel-concrete structural building system according to claim 1, wherein the upper chord member (11), the lower chord member (12) and the vertical members (13) are provided with a plurality of punched holes, and the punched holes are used as bolt holes of positioning bolts or threading pipe holes of strong and weak electricity.
8. The truss-combined steel-concrete structural building system according to claim 1, wherein the surfaces of the combined columns and the synthetic beams are coated with integrated dismantling-free templates, concrete is poured inside the integrated dismantling-free templates, and the integrated dismantling-free templates are cement-based pressure plates, precast concrete sheets, autoclaved aerated concrete sheets or ceramsite concrete sheets.
9. The truss-combined steel-concrete structural building system according to claim 1, wherein the wall panels are prefabricated wall panels fixed to both sides of the truss structure.
10. The truss-combined steel-concrete structural building system according to claim 1, wherein the floor slab includes a precast layer and a cast-in-place layer, and the cast-in-place layer is cast together with the concrete in the composite beam.
CN202010344317.2A 2020-04-27 2020-04-27 Truss combined steel-concrete structure building system Withdrawn CN111411706A (en)

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Application Number Priority Date Filing Date Title
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